| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 07/10/2002 | CN2499564Y Roofbolt drill bit |
| 07/10/2002 | CN2499563Y Roofbolt drill rod |
| 07/10/2002 | CN1357676A Geological drilling rod |
| 07/09/2002 | US6415877 Subsea wellbore drilling system for reducing bottom hole pressure |
| 07/09/2002 | US6415869 Method of deploying an electrically driven fluid transducer system in a well |
| 07/09/2002 | US6415867 Aluminum riser apparatus, system and method |
| 07/09/2002 | US6415862 Tubular filling system |
| 07/09/2002 | CA2239210C Instrumentation tubing string assembly for use in wellbores |
| 07/04/2002 | US20020084073 Separation string for the separation of hydrocarbon from contaminants in a wellbore and method of assembling same |
| 07/03/2002 | EP1218620A2 Cable protection in blow-out preventers |
| 07/03/2002 | EP1218619A1 Packer system |
| 07/03/2002 | CN2498319Y Unitary stabilizer of sucker rod |
| 07/03/2002 | CN2498318Y Stabilizer for energy saving sucker rod |
| 07/03/2002 | CN1357089A Swivel appts. |
| 07/03/2002 | CN1357087A Threaded connection with high compressive rating |
| 07/03/2002 | CN1357077A Method of deploying electrically driven fluid transducer system in well |
| 07/03/2002 | CN1356945A Submerged pipeline manifold for offloading mooring buoy and method of installation |
| 07/03/2002 | CN1356450A Drilling apparatus for drilling well in stratum |
| 07/02/2002 | US6412823 Rotating connector with compensating unit |
| 07/02/2002 | US6412614 Downhole shock absorber |
| 07/02/2002 | US6412578 Boring apparatus |
| 07/02/2002 | US6412562 Electrical submersible pumps in the riser section of subsea well flowline |
| 07/02/2002 | US6412554 Wellbore circulation system |
| 07/02/2002 | US6412552 Cable protector |
| 06/27/2002 | WO2002050397A1 Torque reducing tubing component |
| 06/27/2002 | WO2001011181A9 Automated lubricant dispensing system and method for a horizontal directional drilling machine |
| 06/27/2002 | US20020080682 Method and apparatus for suppressing drillstring vibrations |
| 06/27/2002 | US20020079139 Side cutting gage pad improving stabilization and borehole integrity |
| 06/27/2002 | US20020079108 System for accessing oil wells with compliant guide and coiled tubing |
| 06/27/2002 | US20020079102 Method and apparatus for multilateral junction |
| 06/27/2002 | CA2428557A1 Torque reducing tubing component |
| 06/26/2002 | EP1216341A2 Torque transmission system for helical drilling tools |
| 06/26/2002 | CN2497039Y Anti-breakway rotator for flexible sucker rod |
| 06/26/2002 | CN2497038Y Clip-type flexible sucker rod coupling sleeve |
| 06/26/2002 | CN2497037Y Oil drilling tool threaded connection joint with stress release zone |
| 06/26/2002 | CN1355876A Thread form with multifaceted flanks |
| 06/25/2002 | US6409485 System and method for sealing an electrical connection between a power cable and a submersible device |
| 06/25/2002 | US6409226 “Corrugated thick-walled pipe for use in wellbores” |
| 06/25/2002 | US6409175 Expandable joint connector |
| 06/25/2002 | US6408948 Tubing handling for subsea oilfield tubing operations |
| 06/25/2002 | US6408946 Multi-use tubing disconnect |
| 06/25/2002 | US6408891 Flexible pipe for static use in a corrosive ambience |
| 06/23/2002 | WO2002040830A1 Full bore automatic gun release module |
| 06/20/2002 | WO2002048502A1 Hydraulic running tool |
| 06/20/2002 | WO2002048501A1 Method for centralising a tight fitting casing in a borehole |
| 06/20/2002 | US20020076343 Travelling valve assembly for a fluid pump |
| 06/20/2002 | US20020076273 Connectable rod system for driving downhole pumps for oil field installations |
| 06/20/2002 | US20020076177 Optical fiber cable having fiber in metal tube core with outer protective layer. |
| 06/20/2002 | US20020075114 Data transmission system for a string of downhole components |
| 06/20/2002 | US20020074797 Thread joint for percussive drilling and parts therefor |
| 06/20/2002 | US20020074135 System for accessing oil wells with compliant guide and coiled tubing |
| 06/20/2002 | US20020074133 Apparatus for suppression of vortex induced vibration without aquatic fouling and methods of installation |
| 06/20/2002 | US20020073528 Bit torque limiting device |
| 06/19/2002 | CN2495799Y Centralising device for casing |
| 06/19/2002 | CN2495798Y Pumping-rod on-off connector |
| 06/19/2002 | CN2495797Y Blowout prevention on-off connector |
| 06/18/2002 | US6406223 Installation for producing oil from an off-shore deposit and process for installing a riser |
| 06/18/2002 | US6406222 Mooring construction |
| 06/18/2002 | US6406070 Casing drilling connector with low stress flex groove |
| 06/18/2002 | US6405810 Method of lubricating and lubricant spraying apparatus |
| 06/18/2002 | US6405809 Conductive medium for openhold logging and logging while drilling |
| 06/18/2002 | US6405798 Downhole tool and method |
| 06/18/2002 | US6405795 Subsurface signal transmitting apparatus |
| 06/18/2002 | US6405762 Composite pipe assembly and method for preparing the same |
| 06/13/2002 | WO2002046653A2 Slip connector for use with coiled tubing |
| 06/13/2002 | WO2002046568A1 Rotary directional drilling device comprising deflecting means with slides |
| 06/13/2002 | WO2002046567A1 Rotary directional drilling device comprising stabilised deflecting means |
| 06/13/2002 | WO2002046566A1 Rotary directional drilling device comprising nacelle deflecting means |
| 06/13/2002 | WO2002046338A1 Composition for lubricating-film formation suitable for lubrication of screw joint |
| 06/13/2002 | US20020070545 Drilling quick connectors |
| 06/13/2002 | US20020070049 Drilling system |
| 06/13/2002 | US20020070033 System for accessing oil wells with compliant guide and coiled tubing |
| 06/13/2002 | US20020070032 Hydraulic running tool with torque dampener |
| 06/13/2002 | US20020070021 Guide device |
| 06/13/2002 | DE10146025A1 Pneumatische Felsbohrvorrichtung Pneumatic Felsbohrvorrichtung |
| 06/12/2002 | EP1213441A1 Drilling system |
| 06/12/2002 | EP1213440A1 Method for transmitting information along a drill string |
| 06/12/2002 | EP1212511A1 Method of mounting a tsp |
| 06/12/2002 | CN2494871Y Centralising device for sucker rod |
| 06/11/2002 | US6404961 Optical fiber cable having fiber in metal tube core with outer protective layer |
| 06/11/2002 | US6402524 Data transfer system |
| 06/11/2002 | US6402431 Composite buoyancy module with foam core |
| 06/11/2002 | US6402430 Method and device for adjusting the buoyance of an offshore drilling pipe riser |
| 06/11/2002 | US6401842 Directional drilling apparatus with shifting cam |
| 06/11/2002 | US6401840 Method of extracting and testing a core from a subterranean formation |
| 06/11/2002 | US6401825 Marine riser |
| 06/11/2002 | US6401824 Well completion convertible float shoe/collar |
| 06/11/2002 | US6401820 Downhole tool |
| 06/11/2002 | US6401646 Snap-on rotating reduction fairing |
| 06/11/2002 | CA2246393C Seal electrical conductor arrangement for use with a well bore in hazardous areas |
| 06/06/2002 | WO2002044520A2 Spool for injecting a fluid between casings |
| 06/06/2002 | WO2002044516A1 Wellhead assembly for accessing an annulus in a well and a method for its use |
| 06/06/2002 | WO2002044514A1 Casing shoe |
| 06/06/2002 | WO2002044513A1 Improvements to disconnect devices |
| 06/06/2002 | WO2002044512A1 Thread joint for percussive drilling and parts therefor |
| 06/06/2002 | WO2002044511A1 Pneumatic rock-boring device and method for starting such a device |
| 06/06/2002 | WO2002044508A2 Pneumatic rock-boring device and method for horizontal drilling using compressed air and drilling medium |
| 06/06/2002 | US20020066579 Universal drive and earth auger attachment for commercial work vehicle |
| 06/06/2002 | US20020066575 Downhole communication method and apparatus |
| 06/06/2002 | US20020066570 Passive apparatus and method for reducing fluid induced stresses by introduction of energetic flow into boundary layer around structures |